Benzyl chloride. Benzyl chloride, or Î±-chlorotoluene, is an organic compound with the formula C6H5CH2Cl. This colourless liquid is a reactive organochlorine compound that is a widely used chemical building block.
Two slits are illuminated with red light (Î» = 650 nm). The slits are 0.25 mm apart and the distance to the screen is 1.25 m. What fraction of the maximum intensity on the screen is the intensity measured at a distance 3.0 mm from the central.
Now, two radially opposite points on the equator will be most distant to each other. And the distance needs to be measured in a circumferential path along the equator. So, the farthest distance in the world is 3.14*3963 miles = 12443.82 miles i.e. 19910 km. PS. Cases with larger distances are possible depending upon the path of travel and location of two points on the Earth.